Admissions How important is my final transcript

I recently was accepted into OSU and am a little concerned because I have been a 4.0 student for the past 2-3 years but might graduate with a couple bs on my final transcript maybe even a c. Are they able to just decline me? If so how much slacking off would I have to do for that to happen. Seniorits is killing me

Hi! I'm calling to find out the exact minimum amount of work I need to do to ensure you don't rescind my admission! Can you tell me that?

Ok obviously I didn't communicate properly and I'll take the blame on that one. The Bs and potential C are stuck, from this point on I will be getting all As. So its more like "Hi! I'm calling to find out if I'm already screwed and should give up on life."

Most unis in the US are not going to rescind an admissions offer due to a couple Bs on the final transcript. Once the final date passes to accept an admissions offer (May 1 for most selective US institutions), institutions realize that if they dump you then you are majorly inconvenienced, because you can no longer accept another offer. Usually, getting an admissions offer rescinded after May 1 and after you have accepted requires:
1. Not graduating from high school. Admissions offers are usually explicitly dependent on this. Documenting that you graduated is why they want and need that final transcript.
2. Being convicted of a disqualifying crime.
3. Violating their policy on telling the truth on your application: they think you defrauded them on the application or elsewhere in the process.

There may be other things, but they tend to be more serious than a couple of Bs.